# Grok Imagine Video 1.5 API

> Grok Imagine Video 1.5 — high-quality AI video generation.

- **Provider**: Grok
- **Model id**: `grok-imagine-video-1-5-preview`
- **Modality**: video
- **Price**: 4.43–7.8 credits /sec

## Overview

Grok Imagine Video 1.5 is called in two steps: create a generation task, then poll the task until the result is ready.

## Authentication

All requests require a Bearer Token in the request header:

```
Authorization: Bearer YOUR_API_KEY
```

## Create Task

`POST https://you.bot/api/v1/generate`

| Parameter | Type | Required | Description |
|-----------|------|----------|-------------|
| modelId | string | Yes | Model id: `grok-imagine-video-1-5-preview` |
| input | object | Yes | Input parameters object (see below) |
| callbackUrl | string | No | https URL to receive a signed webhook on completion |

### input object parameters

| Parameter | Type | Required | Description |
|-----------|------|----------|-------------|
| prompt | string | No | Prompt for video generation (default: Slow cinematic push-in with gentle ambient motion, soft light shifting across the frame, subtle parallax and shallow depth of field.) |
| image_urls | string[] | Yes | Upload an image file to use as input for the API (image URL) |
| aspect_ratio | string | No | Aspect ratio for video generation.If not uploaded, follow the image size. (options: auto | 1:1 | 16:9 | 9:16 | 3:2 | 2:3) (default: auto) |
| resolution | string | No | Resolution for video generation. (options: 480p | 720p) (default: 480p) |
| duration | number | No | Video duration in seconds. Range: [1, 15]. Default: 8. (range 1-15) (default: 8) |
| nsfw_checker | boolean | No | A configurable parameter. Defaults to true in the Playground. (true/false) (default: true) |

### Request example

```json
{
  "modelId": "grok-imagine-video-1-5-preview",
  "input": {
    "prompt": "A cinematic aerial shot of a coastal town at golden hour, gentle waves rolling onto the shore, warm light, slow camera push-in.",
    "image_urls": [
      "https://example.com/input.jpg"
    ],
    "aspect_ratio": "auto",
    "resolution": "480p",
    "duration": "8",
    "nsfw_checker": true
  }
}
```

### Response example

```json
{
  "taskId": "281e5b0…f39b9",
  "creditsCharged": 24
}
```

## Query Task

`GET https://you.bot/api/v1/task/{taskId}?model=grok-imagine-video-1-5-preview`

When `state` is `success`, the output is in `resultUrls`: `{ "state": "success", "resultUrls": [ ... ] }`. (Text models return inline in the create response.)

## Error Codes

| Code | Description |
|------|-------------|
| 200 | Request successful |
| 400 | Invalid request parameters |
| 401 | Authentication failed, check API Key |
| 402 | Insufficient account balance |
| 422 | Parameter validation failed |
| 429 | Request rate limit exceeded |
| 500 | Internal server error |